Signors of one-half to william g



(No Modl.)

V A. P. & W. L. PIPIELD.

MEASURING PUMP.

Patented Sept. 27, 1887.

UNITED STATES PATENT ()FFIcE.

ALFRED P. FIFIELD AND WALTER L. FIFIELD, OF AUGUSTA, MAINE, AS- SIGNORS OF ONE-HALF TO WILLIAM G. FIFIELD, OF SAME PLACE.

HMEASURlNG-PUMP.

SPECIFICATION forming part of Letters Patent No. 370,613, dated September 27, 1887.

Application filed May 25, 1887.

' set forth in the following specification and accompanying drawings, in which- Figure 1 is a sectional view; Fig. 2, part of the registering apparatus, and Fig. 3 the dial and indicators.

Like letters of reference indicate like parts.

The object of our invention is to construct a measuring pump by which the liquid is pumped from the cask or barrel toany other vessel and measured by passing through the intermediate device connected thereto without the use of a tank or similar arrangement.

In the drawings, a is a cylinder in which is the piston c, operated by the handle f and rod d, the handle being pivoted to the rod 9, secured in box h. In the cylinder a is fixed the valve i, opening upward. The cylinder a is joined by coupling to the pipe j, which extends into the liquid to be pumped, and if there is any considerable distance to the liquid a second valve, 13, can be put in the pipe to prevent the flow of the liquid from the pipe j when not in use.

To the cylinder at the discharge-pipe m, with the outlet n, is connected, m and n being connected by a screw-thread. In the pipe in is the sliding block is and spiral spring Z. The pipe at also has an opening, 0, connecting with the cylinder b. In the cylinder bis the piston p,with rod q, said rod having the rack tthereon. It also has, resting upon the piston p, the spiral spring 1'.

s is an overflow from b, s from a, joining in s, which runs down on the outside of the pipe 3'.

The rack it engages the cage-pinion u,which turns loosely on the small spindle w. pinion is the pawl,1',which engages the ratchetwheel 2, secured on the spindle w. Secured on the spindle w are also the screw-wheel w and the ratchet-wheel y. This screw-wheel engages the cog-wheel 'v on spindle 3, and the ratchet y is held by the pawl 2. On the spin dle 3 is the cog-wheel 4, engaging wheel 5 on spindle 7. This spindle 7 extends through the On this ScrialNo.239,3/5. (No model.)

dial-plate 12, and has thereon the indicator 6. It also has thereon the wheel 8, which engages wheel 9 on spindle 10, which spindle also extends through thedial-plate 12 and has thereon the indicator 11. 12 is the dial, numbered for the indicators 6 and 11.

The operation of the pump is as follows: The pipe 3' is run into the liquid to be pumped. Then by raising the handle f the piston c is lifted, the valves i and 13 are opened, and the liquid drawn up into the cylinder at, the outlet through the pipe 111. being closed by the block 70, which is pressed forward and held by the spiral spring Z. The handle f being depressed, the valves 12 and 13 are closed, the 6 block is forced back, the spring Z being compressed, and the liquid forced out through the pipe at until the block passes the opening 0. Then, the block 70 being longer than the width of the opening 0, there is no outlet for the 70 liquid except into the cylinder 12, and the force exerted throws up the piston 19 and rod q, and consequently compresses the spiral spring 0".

When the movement of the handle f is reversed and the force withdrawn from the piston c, the spiral spring Z expands, the block is is thrown forward, and as soon as it passes the opening 0 the liquid flows out through an a into the receiving-vessel, the spiral spring 1- expands, and the piston 19 and rod q are brought back to the position indicated. If there is any liquid forced above the pistons 0 or p, it will find its way back into the cask through the pipes s, s, and 8. When the rod (1 is thrown up, the rack 16 thereon engages the pinion a and turns it. The pawl 1 thereon,engaging the ratchet 2, which is fast on the spindle w, turns the spindle, and consequently the wheels 00 and y. Then the piston 10 and rod q return to place, the pawl 1 on u slides back over .2, while the spindle w is prevented from turning back by the pawl and ratchetzy. "When the wheel 00 is turned,itturns the cog-wheel o,and through the spindle 3, wheels 4 and 5, and spindle 7 motion is transmitted to the indicator- 6, and from spindle 7. through wheels 8 and 9 and spindle 10, to the indicator 11. These indicators on dial 12 have numbers around the circles to indicate the amount of liquid which has been forced through the pump, and this, I00

together with the relation between the two, may be varied as desired. The registering device is inclosed in the case 14.

It will be seen that it is immaterial what the length of the stroke of the piston c is, as the indicators are moved in proportion to the movement of the piston 12 and will accurately measure any quantity, however small, passing through the cylinder 1). The pistons c and p and the block it have proper packing to prevent the passage of the liquid by them.

The dial 12 is placed so that the operator looks down on it. It is obvious that it may be placed perpendicular, if desired, the operation being substantially the same.

The indicators 6 and 11 may be arranged to turn on the spindles 7 and 10, so that they can be brought back to a starti ng-point when commencing to pump.

We claim as our invention 1. A measuring pump composed of the force-pump, as described, connected with the pipe m, having cylinder 2) thereon, and the sliding block 70, and spiral spring l therein, said cylinder having the piston 12, with rod q, and spring 9' therein, all operating, substantially as described, in combination with a suitable registering device.

2. A measuring pump composed of the force-pump, as described, the pipe m, having sliding valve 70 Z, discharge at, cylinder 1), with piston 1;, rod q, and spring 1' therein, in combination with the registering device described, consisting of rack t, wheels 00, a, o, 4, 5, 8, and 9, ratchets l 2 and y z, indicators 6 and 11, and spindles w, 3, 7, and 10, as fully set forth.

ALFRED P. FIFIELD. WALTER L. FIFIELD.

Witnesses:-

WINFIELD S. CHOATE, E. S. FOGG. 

